Hi Norma June,

Well, this sounds stupid, but I am not quite sure what it is. It was in my grocery store, and a friend tried it, so I tried it too. It is kind of round, but more eliptical than a sphere. It is green on the outside and sometimes has green stalks with leaves coming out of the top-sometimes the store cuts these off. When you go to use it, you have to peel off the outer green layer until you get to the white inside part. Then I just chopped the white part into cubes and added it to my homemade soup. It took about as long to cook as potatoes would have. In our store there are markers on the produce that tell the calories, carbs, etc... The kholrabi was relatively low in carbs. I can't remeber the exact count, but definitely less than potatoes. Ask your produce person about it.